- one of the conidia that are borne in chains by certain fungi.
- (in certain fungi) a thin-walled spore derived from the fragmentation of a hypha into its component cells.
Origin of oidium
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- botany any of various fungal spores produced in the form of a chain by the development of septa in a hypha
New Latin: from oo- + -idium diminutive suffix